My wife has pink eye. I have a fresh (not expired) tube of erythromycin ophthalmic ointment. Can she apply? If so, please advise on usage/dosage.

4x day. If you are sure the bottle/tip has not been contaminated it can be used 4x day. Ointment does blur the vision so patients are usu prescribed antibiotic drops for bacterial conjunctivitis.

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